Decky Streamer

A Decky Loader plugin for streaming Steam Deck gameplay to RTMP endpoints like Twitch, YouTube Live, Kick, and other streaming platforms.

Based on decky-recorder-fork by marissa999/safijari.

Features

• Platform Presets: One-click setup for Twitch, YouTube, Kick, Facebook, or custom RTMP servers
• Hardware-accelerated H.264 encoding using VAAPI for efficient streaming
• Configurable video settings:
  • Bitrate: 1000-8000 kbps
  • Resolution: Native (auto-detected), 720p, 800p, or 1080p
  • Framerate: 30 or 60 fps
• Audio settings:
  • Bitrate options: 96, 128, 160, 192, or 256 kbps
• Advanced encoder options (optional):
  • Keyframe interval (GOP size)
  • B-frames for improved compression
• Microphone support with echo cancellation
• Optional enhanced noise cancellation (requires additional binary)
• Live stream duration indicator

Requirements

• Steam Deck with Decky Loader installed
• Node.js 18+ (for building from source)
• pnpm (for building from source)
• Docker (for building from source)
• jq (for building from source)

Screenshot

Installation

From Release ZIP

1. Download the latest decky-streamer.zip from releases
2. Open Decky Loader settings on your Steam Deck
3. Go to the "Developer" section
4. Click "Install Plugin From ZIP"
5. Select the downloaded ZIP file

Building from Source

1. Initialize the project:

   make init

2. Edit the .env file with your Steam Deck's IP/hostname:

   DECK_USER=deck
   DECK_HOST=<your-steamdeck-ip>
   DECK_PORT=22
   DECK_HOME=/home/deck
   DECK_KEY=~/.ssh/id_rsa
   

3. Copy your SSH key to the Steam Deck:

   make copy-ssh-key

4. Build the plugin:

   make build

5. Deploy to your Steam Deck:

   make deploy

Or do it all in one step (after init):

make it

Usage

1. Open the Decky menu on your Steam Deck

2. Find "Decky Streamer" in the plugin list

3. Configure your stream settings:

   • Platform: Select your streaming platform (Twitch, YouTube, etc.) or "Custom" for other RTMP servers
   • Stream Key: Your secret stream key from your streaming platform's dashboard
   • Video Bitrate: Higher = better quality but more bandwidth
     • 4500 kbps recommended for 720p60
     • 6000 kbps recommended for 1080p60
   • Resolution: 720p recommended for stable streaming
   • Framerate: 60 fps for smooth gameplay, 30 fps for lower bandwidth
   • Audio Bitrate: 160 kbps is a good default

4. (Optional) Enable "Show Advanced Options" for:

   • Keyframe Interval: Controls how often full frames are sent (affects seeking/quality)
   • B-Frames: Improves compression quality but adds slight latency

5. Press "Start Streaming" to go live!

Platform RTMP URLs

The plugin includes built-in presets for these platforms:

Platform	RTMP URL (built-in)
Twitch	rtmp://ingest.global-contribute.live-video.net/app
YouTube	rtmp://a.rtmp.youtube.com/live2
Kick	rtmp://fa723fc1b171.global-contribute.live-video.net/app
Facebook	rtmps://live-api-s.facebook.com:443/rtmp

For custom RTMP servers, select "Custom" and enter your server URL.

Enhanced Noise Cancellation (Optional)

For better microphone noise cancellation, you can download an enhanced binary:

# Download GPL-3 binary for superior denoising
denoise_version="1.03"
denoise_zip_url="https://github.com/werman/noise-suppression-for-voice/releases/download/v${denoise_version}/linux-rnnoise.zip"
denoise_zip_file_path="/home/deck/homebrew/data/decky-streamer/linux-rnnoise.zip"
denoise_extracted_file_path="/home/deck/homebrew/data/decky-streamer/librnnoise_ladspa.so"

mkdir -p /home/deck/homebrew/data/decky-streamer
wget "${denoise_zip_url}" -O "${denoise_zip_file_path}"
unzip -j "${denoise_zip_file_path}" 'linux-rnnoise/ladspa/librnnoise_ladspa.so' -d /tmp
mv /tmp/librnnoise_ladspa.so "${denoise_extracted_file_path}"

After installing, restart the microphone toggle to see noise reduction options.

Troubleshooting

Stream won't start

• Verify your stream key is correct
• Check that your platform's RTMP URL is accessible
• Ensure you have a stable internet connection
• Check the plugin logs at ~/homebrew/logs/decky-streamer/

Black screen / No video

• Try restarting the stream
• Check the plugin logs at ~/homebrew/logs/decky-streamer/

Poor stream quality

• Reduce video bitrate if your upload speed is limited
• Try 720p resolution instead of 1080p
• Use 30 fps instead of 60 fps to reduce bandwidth
• Close other network-intensive applications

Audio issues

• Make sure game audio is playing through the default output
• If using microphone, try adjusting the gain
• Check that the correct microphone source is selected

Settings not saving

• Settings are saved when you change them
• If issues persist, try reloading the plugin from Decky settings

License

GPL 3.0

Acknowledgments

• decky-recorder-fork by marissa999/safijari
• Recapture Plugin by Avery
• Decky Loader team